Alternators The speed of a salient pole machine is nearly 1000 rpm 1500 rpm 3000 rpm 500 rpm 1000 rpm 1500 rpm 3000 rpm 500 rpm ANSWER DOWNLOAD EXAMIANS APP
Alternators The voltage regulation of an alternator for a pf of 0.8 lagging is _______at unity pf. Greater than Smaller than The same as None of the listed here Greater than Smaller than The same as None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Alternators The frequency of the system with which several alternators are paralleled can be increased of by simultaneously _______ of all generators. Decreasing the field excitation Increasing the speed of prime movers Increasing the field excitation Decreasing the speed of prime movers Decreasing the field excitation Increasing the speed of prime movers Increasing the field excitation Decreasing the speed of prime movers ANSWER DOWNLOAD EXAMIANS APP
Alternators In an alternator, the stator frame serves As a return path for the flux To verticate the armature To hold the armature stampings To protect the whole machine As a return path for the flux To verticate the armature To hold the armature stampings To protect the whole machine ANSWER DOWNLOAD EXAMIANS APP
Alternators In case of a uniformly distributed winding, the value of distribution factor is 0.76 0.995 0.85 0.65 0.76 0.995 0.85 0.65 ANSWER DOWNLOAD EXAMIANS APP
Alternators Which harmonic will be totally eliminate in an alternator by using a fractional pitch of 4/5 ? Seventh Ninth Fifth Third Seventh Ninth Fifth Third ANSWER DOWNLOAD EXAMIANS APP